maybe good

.gitattributes

@@ -1,2 +1,124 @@
+# Delphi Consulting Group Database System - .gitattributes
+
 # Auto detect text files and perform LF normalization
 * text=auto
+
+# ===== SECURITY SENSITIVE FILES =====
+# Ensure environment files are treated as text (for proper diff)
+.env* text
+*.env text
+
+# ===== SOURCE CODE =====
+# Python files
+*.py text diff=python
+*.pyx text diff=python
+*.pyi text diff=python
+
+# Configuration files
+*.cfg text
+*.conf text
+*.config text
+*.ini text
+*.json text
+*.toml text
+*.yaml text
+*.yml text
+
+# Web files
+*.html text diff=html
+*.css text diff=css
+*.js text
+*.jsx text
+*.ts text
+*.tsx text
+
+# Templates
+*.j2 text
+*.jinja text
+*.jinja2 text
+
+# ===== DOCUMENTATION =====
+*.md text diff=markdown
+*.rst text
+*.txt text
+LICENSE text
+README* text
+
+# ===== SHELL SCRIPTS =====
+*.sh text eol=lf
+*.bash text eol=lf
+*.fish text eol=lf
+*.zsh text eol=lf
+
+# Batch files (Windows)
+*.bat text eol=crlf
+*.cmd text eol=crlf
+*.ps1 text eol=crlf
+
+# ===== DOCKER & DEPLOYMENT =====
+Dockerfile* text
+docker-compose*.yml text
+*.dockerfile text
+
+# ===== DATABASE & DATA =====
+# Treat as binary to prevent corruption
+*.db binary
+*.sqlite binary
+*.sqlite3 binary
+
+# SQL files as text
+*.sql text
+
+# CSV files as text (but may contain sensitive data - see .gitignore)
+*.csv text
+
+# ===== LEGACY PASCAL FILES =====
+# Treat legacy files as binary to preserve original format
+*.SC binary
+*.SC2 binary
+*.LIB binary
+
+# ===== CERTIFICATES & KEYS =====
+# Always treat as binary for security
+*.pem binary
+*.key binary
+*.crt binary
+*.cert binary
+*.p12 binary
+*.pfx binary
+
+# ===== IMAGES =====
+*.png binary
+*.jpg binary
+*.jpeg binary
+*.gif binary
+*.ico binary
+*.svg text
+*.webp binary
+
+# ===== FONTS =====
+*.woff binary
+*.woff2 binary
+*.eot binary
+*.ttf binary
+*.otf binary
+
+# ===== ARCHIVES =====
+*.zip binary
+*.tar binary
+*.gz binary
+*.rar binary
+*.7z binary
+
+# ===== JUPYTER NOTEBOOKS =====
+# Merge conflicts in notebooks are problematic
+*.ipynb text
+
+# ===== GITHUB SPECIFIC =====
+# Treat GitHub files as text
+.gitignore text
+.gitattributes text
+.github/** text
+
+# ===== LOG FILES =====
+*.log text